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ELISA Troubleshooting: High %CV at Low Standards(Post)
QUICK ANSWER On a Human I-FABP/FABP2 ColorStep ELISA, the top of the standard curve looked perfect while the three lowest standards showed duplicate %CVs of 37–450% — because their op
ELISA High Background Troubleshooting: FBS Matrix Interference(Post)Quick answer A researcher running a Rat Eotaxin/CCL11 (Eotaxin) sandwich ELISA saw sample readings sit above the top standard and wells turn colour the instant TMB was added — even aft
ELISA Cross-Reactivity: Tagged Standards vs Native Samples(Post)Quick answer A researcher validating two isoform assays — the Human ALT1 (HUFI00557) and ALT2 (HUFI00593) ELISA kits — spiked the ALT2 kit's standard onto the ALT1 kit's plate and saw
TIM-3: Targeting T Cell Exhaustion for Better Immunotherapy Outcomes(Post)T cell immunoglobulin and mucin-domain containing-3 (TIM-3) is an immune checkpoint receptor that plays a pivotal role in T cell exhaustion, a state where T cells lose their ability to ef
FAO Activity Negative Results? Data Analysis Help(Post)Quick answer On the Fatty Acid Oxidation (FAO) Assay Kit (BR00001), a researcher found that a subset of skeletal-muscle samples returned negative values once the control well was subtr
8-OHdG/Creatinine Ratio Too High? Urine ELISA Troubleshooting(Post)Quick answer A researcher running an 8-OHdG ELISA and a creatinine ELISA on human urine got 8-OHdG/creatinine ratios in the hundreds, then the thousands, of ng/mg, far above the ~30–40
Epigenetic modifiication & Histone methylation(Post)Agata Miezaniec PhD Candidate, University of Nottingham, UK Epigenetics and the link to DNA Methylation The term ‘Epigenet
In Vitro vs In Vivo: Complete Comparison + Selection Guide | Research Methods(Post)Discover the distinct roles of 'In Vivo' and 'In Vitro' in biological research, where one offers a natural context and the other precise control, both vital for scientific advancement.
Praluzatamab: Unveiling the Promise of CD47-Targeted Therapy in Cancer Research(Post)Quick Facts About PraluzatamabWhat is Praluzatamab?Praluzatamab is an experimental monoclonal antibody that targets CD47, a “don’t eat me” signal used by cancer cells to evade immune des
CD25 and Tregs: Understanding the Role of Regulatory T Cells in Tumor Immunity(Post)Regulatory T cells (Tregs) play a crucial role in maintaining immune balance by suppressing excessive immune responses that could lead to tissue damage. However, in the context of cancer,
NK Cell Cytotoxicity Pathway: Receptors, Signalling and Assays(Post)A natural killer cell decides by subtraction. It carries no rearranged antigen receptor and no memory of what it has seen. It presses a panel of germline-encoded receptors against a target and integr
p38 MAPK Signaling Review(Post)The p38 MAPK signaling pathway is an intracellular signaling pathway that plays a crucial role in cellular responses to various stressors and inflammatory stimuli. It is a part of the larger MAPK
Rapid COVID Antibody Test | Antibody Tests(Post)What does the COVID-19 Rapid POC CE-IVD Test detect? The test detects the presence of patient-generated antibodies against spike protein, the virus which causes the disease COVID-19. The tes
CD122: Fine-Tuning T Cell Responses in Immunotherapy(Post)Introduction to CD122 in Immunotherapy CD122, also known as the interleukin-2 receptor beta chain (IL-2Rβ), is a critical component of the immune system's response to pathogens and malign
Avoid Reagent Risk: Polyclonal vs Monoclonal Antibodies for Researchers(Post)For reproducible, isoform-specific detection, choose a monoclonal antibody; for robust detection across multiple epitopes or faster turnaround, choose a polyclonal antibody. The real tradeoff is epit
TNFRSF9: Enhancing Immune Cell Activity Against Tumors(Post)Introduction to TNFRSF9 and Its Role in Immune ActivationTNFRSF9, also known as 4-1BB or CD137, is a co-stimulatory receptor expressed on the surface of T cells, natural killer (NK) cells
In Vitro vs In Vivo: Key Differences & When to Use Each(Post)In Vitro vs In Vivo: Complete Comparison + Selection Guide | Research MethodsDiscover the distinct roles of 'In Vivo' and 'In Vitro' in biological research, where one offers a natural con
GPCRs (G Protein Coupled Receptors): A Guide(Post)Cell Signalling · Receptor BiologyGPCRs (G Protein-Coupled Receptors): A Complete GuideG protein-coupled receptors are the largest family of cell-surface receptors in the human genome and the ta
Transformation Protocol – Sample Transformation Protocols(Post)Introduction Transformation of bacteria with plasmids is not only of note for bacterial studies but also can be used for gene expression studies in mammalian cells. Most plasmids are of bact
HERV-K group of endogenous retroviruses and cancer(Post)In 2006, upon completion of the Human Genome Project, it was discovered that nearly 8% of the human genome is made up of viral DNA. These viral remnants are composed of ancient germl